Machine for sawing shingle-bolts



(No Model.)

' 2 Sheets- -Sheet 1. E. H. ALLMAN.

MAGHINETOR SAW-ING SHINGLE BOLTS.

Patentd Jan. 4, 1887.

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' ATTORNEYS 2 t e e h S W e e h s 2 A M Tu L A H H m d o M 0 W MAGHINE FOR SAWING SHINGLEY BOLTS. N0. 355,581.

Patented Jan. 4, 1887.

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, MAN, of Mobile, in the county of Mobile and UNITED STATES PATENT OFFICE.

EUGENE HILLERY ALL MAN, OF MOBILE, ALABAMA.

MACHINE FOR SAWING SHlNGLE-BOLTS.

SPECIFICATION forming part of Letters Patent No. 355.581, dated January 4-, 1887.

Application filed August 18. 1886. Serial No. 211.223. (No model.)

To all whom it may concern.-

Be it known that I, EUGENE HILLERY ALL- State of Alabama, have invented a new and useful Improvement in Shingle-Bolts, of which the following is a specification.

My invention consists in an improved machine for cutting shingle-bolts and for carryrying away the bolts after they have been cut by the saw, and which will be hereinafter fully described and claimed.

Referring to the accompanying drawings, Figure l is an end view of my invention taken from the forward end of the same. Fig. 2 is a perspective view of a portion of the carriage and its adjacent parts. Fig. 3 is a top plan view, and Fig. 4 is a side elevation, of a portion of the mechanism.

The same letters of reference indicate corresponding parts in all the figures.

. Referring to the several parts by letters, A represents the framing which supports the several parts of the mechanism in their operative positions. B indicatesthe saw-arbor,which is supported in hearings on the frame A, and which carries at its right-hand end the circular saw 0, which is parallel with the righthand side or edge of the main framing A.

On the left-hand portion of the saw-arbor is secured the drive-pulley D, around which passes the drive-belt from the source of power. To the right of the drive-pulley on the sawarbor is secured a smaller pulley, E, around which'passes a belt, F, which in turn passes, as shown, around two pulleys, G and H, secured, respectively, on the left-hand portion of two parallel shafts, I and J ,which are journaled below the level of the saw-arbor, as shown, and which have secured on their righthand portiohs two smaller pulleys, K and L, which are in contact with the periphery of a large friction-wheel, M, which is securedon the left-hand end of the feedshaft N.

It will be seen that by arranging the belt F so that it passes over the pulley G and under the pulley H the said pulleys, with their shafts and smaller pulleys K and L, are rotated in different directions. The feed-shaft N extends with its right-hand end beneath the middle of the carriage O,and has secured on its free right-hand end a pinion, P, which meshes with the teeth of a rack, Q, secured on the bottom carriage is covered with sheet-iron, to protect the planks of the floor from wear and diminish the friction of the blocks on the carriage. These rails run parallel with the right-hand side of the main frame A, and the carriage runs parallel with the said. frame, the" floor of the carriage being level with the platform S on the main frame,which carries the adjustable gage T. This gage, which is on the lefthand side of the saw, is formed with the transverse vertical slots U, through which pass the retaining-bolts of screws V, and the gage may be adjusted back or closer to the edge of the platform by loosening the said screws and tightening them to secure the gage in its adjusted position.

Beneath the left-hand portion of the carriage-floor extends and turns in bearings the longitudinal adjusting-shaft W, which has secured on it, at suitable distances apart, the trie angular feed-cams X, the points of which are formed with the sharp teeth Y, adapted to engage with the under surface of the block from which the bolt is to be out, these points passing up in turn through transverse slots Z in the floor of the carriage, as shown.

The forward end of the set-shaft W is provided with apinion, A, and alever, B, turns with its lower end on the said end of the shaft, and has a pivoted pawl, O which engages with the pinion on the forward stroke of the lever, so as to partially rotate the adjustingshaft and through the feed-cams X- set the blocks forward five inches,or as far as the gage T permits, for the next bolt to be cut by the saw. A block, D, is secured across the lefthand forward end of the carriage, as shown, and serves to hold the block from which the bolt is being cut from slipping.

Parallel to the saw-arbor and in front of the same is journalecl a short shaft, E, carrying a pulley, F, about twelve inches in width, and around this pulley passes an, endless belt, G, ten inches in width, which passes over and around the platform S, parallel with the right- -hand edge thereof, and then around a smaller pulley, H, on the center of a shaft, I, journaled parallel with the shaft E, and at any de- ICO sired distance from the saw at the point of destination where it is desired to convey the bolts after they are cut.

On the left-hand portion of the shaft I is secured alarge drive-pulley, J, whichis rotated by a belt from one of the shafts previously described, or -from any suitable source, thereby revolving the wide belt G continuously away from the saw in the direction indicated by the arrow. To the right-hand upper edge of the platform S, to the left of the saw and parallel with the plane thereof, is secured a strip, K, one inch in width and four feet in length,which rises one-half inch above the top of the platform.

In operation, the saw-arbor,with its saw, is revolved,thereby through the system of shafts and pulleys described rotating the feed-shaft N, which propels the carriage so that the saw cuts the bolt from the block adjusted thereon. At the moment when the bolt is cut clear of the block it rests on the strip K,which causes it to overbalance and fall on the revolving endless carrier-belt G, which carries it to its destination and drops it over the pulley H as the carrier-belt passes around the same. The block is then moved forward after the carriage has been returned by reversing the lever by the feed cams X, when the abovedescribed operation is repeated, and so on.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 18-,-

1. The combination, with the carriage having the transverse slots, of the longitudinal adjusting-shaft, thetriangular cams secured thereon, andhaving the sharp teeth formed on their points, and the operating-lever having the pivoted pawl,substantially as set forth.

2. The combination of the platform having the adjustable gage, the saw-arbor-carrying the circular saw, the feed-shaft having the described, for rotating the feed-shaft from the saw-arbor, the carriage provided with the rack, the transverse end block formed with the vertical slots, the adjusting-shaft carrying the triangular cams having the teeth formed on their points, and the lever having the pivoted pawl, as and for the purpose set forth.

3. The combination of the platform having the raised strip on its edge and the adjustable guge,the saw-arbor carrying the circular saw, the feed-shaft having the pinion on its f reeend, means, substantially as described, for rotating the feed-shaft from the saw-arbor,the carriage provided with the rack, the transverse end block, and formed with the vertical slots, the adjustingshaft carrying the triangular cams haviug the teeth formed on their points, the lever having the pivoted pawl, and the endless carrier-belt arranged as describcd,all constructed and arranged to operate in the man ner and for the purpose herein set forth.

EUGENE HILLERY ALLMAN.

Witnesses:

' W. D. M. KINSTRY,

JAS. E. SHERMAN, J r."

pinion on its free end, means, substantially as 

